<template>
  <div>
    <!-- 底部部分 -->
    <footer class="footer">
      <span class="todo-count"
        ><strong>{{ sum }}</strong
        >剩余</span
      >
      <ul class="filters">
        <li>
          <a
            :class="{ selected: listType === all }"
            @click="changeType('all')"
            href="#/"
            >全部</a
          >
        </li>
        <li>
          <a
            :class="{ selected: listType === active }"
            @click="changeType('active')"
            href="#/active"
            >进行中</a
          >
        </li>
        <li>
          <a
            :class="{ selected: listType === completed }"
            @click="changeType('completed')"
            href="#/completed"
            >已完成</a
          >
        </li>
      </ul>
      <button class="clear-completed" @click="clearBtn">清除已完成</button>
    </footer>
  </div>
</template>
 
<script>
export default {
  name: "Footer",
  props: {
    sum: {
      type: Number,
      required: true,
    },
    clearBtn: {
      type: Boolean,
      required: true,
    },
    listType: {
      type: String,
      required: true,
    },
  },
  methods: {
    clearBtn() {
      console.log()
      this.$emit("clearBtn");
    },
    changeType(value) {
      this.$emit("changeType", value);
    },
  },
};
</script>

<style scoped>
</style>